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There are several great products on the market, The HC-SR04, Ultrasonic, Distance Sensor+SainSmart LCD Keypad Shield is one that you should have. The HC-SR04, Ultrasonic, Distance Sensor+SainSmart LCD Keypad Shield is a popular product that everyone can invest on. Most people who have purchased and used this product are very impressed with its overall performance. Most of them noted how happy they are that they have finally found the right product..

Please read product description before you decide to buy this product or click here for more details.

• Ultrasonic Module HC-SR04 Distance Sensor automatically sends eight 40 kHz and detect whether there is a pulse signal back
• The SainSmart LCD Keypad shield module for Arduino Diecimila Duemilanove, UNO, MEGA1280, MEGA2560 board.
• Buy them TOGETHER and get at the REDUCE price. It is a big bargain!!!

The SainSmart LCD Keypad Shield includes a 16x2 HD44780 White on Blue LCD module
and a 5 push button keypad for menu selection and user interface programming.
Fully assembled. On-line Arduino tutorial and example code. Compatible with
Arduino Uno, Mega, Duemilanove. Uses digital pins 4 - 10, and analog pin 0.


The Ultrasonic Module HC-SR04 Distance Sensor are 4 pins out of the module: VCC,
Trig, Echo, GND. So it's a very easy interface for controller to use it ranging.
The all process is : pull the Trig pin to high level for more than 10us impulse,
the module start ranging; finish ranging, If you find an object in front, Echo
pin will be high level, and based on the different distance,it will take the
different duration of high level. So we can calculated the distance easily:
Distance = ((Duration of high level)*(Sonic :340m/s))/2

Package Content


1 x LCD Keypad Shield

1 x HC-SR04 Distance Sensor

NOTE: instructions:

https://s3-ap-northeast-1.aws.com/sain-amzn/20/20-011-901/LCD1602.rar

https://s3-ap-northeast-1.aws.com/sain-amzn/20/20-019-100/HC-SR04.rar

Cheap HC-SR04, Ultrasonic, Distance Sensor+SainSmart LCD Keypad Shield

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